<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script>
    console.log("aaaa %d bbbb %s", 11,"Davin")
    console.log("aaaa %s bbbb %s cccc", 22, 33)

    var obj = {
        a: 1
    }
    console.log("this is %o", obj)
    console.log('this is %c 红色', 'color: red; font-size: 20px;')

    console.log()


</script>
</body>
</html>
